BACKGROUND Auscultation of breath sounds is used routinely to confirm tracheal placement of endotracheal tubes (ETT). In infants and children, this method is limited by the conduction of breath sounds bilaterally, despite endobronchial intubation. Although several methods of detecting endobronchial intubation have been described, none is both simple and reliable. In this investigation, we deter...

Biological transient signals produced by snapping shrimp are sensed underwater by a wide aperture array. The instantaneous range and bearing of the source position of each snap is estimated along with a source level equal to the peak-to-peak amplitude of the pressure impulse generated by the snap at a standard distance of 1 m from its point of origin. For a sample of 1000 snaps recorded in Sydn...

The three-dimensional finite element model of the postoperative whole human eye after small incision lenticule extraction (SMILE) surgery and axisymmetric air-puff were established, influencing factors in Air-puff test explored from displacement nephogram on anterior corneal surface. Our results showed that maximum depression was positively correlated with corrected diopter when peak pressure e...

The goal of the research is to investigate the special effect of ovarian-menstrual cycle phases on the level of women's blood pressure and characteristics of Mayer waves. 77 women aged 18-19 were tested under condition close to the state of basal metabolism in follicular phase (I), ovulation (II) and luteal phase (III) of ovarian-menstrual cycle. In phases II and III, the increase of mean and d...

A 40-YR-OLD man presented for excision of recurrent pituitary adenoma. Medical history included pulmonary tuberculosis. On chest auscultation, diminished air entry in the left axillary and supra-/infraclavicular areas were observed. Chest radiogram demonstrated evidence of collapse and/or fibrosis of most of the left lung and significant ipsilateral tracheal and mediastinal shift (fig. A). Afte...

OBJECTIVE To evaluate pulmonary functions of patients with amyotrophic lateral sclerosis (ALS), Duchenne muscular dystrophy (DMD), and myotonic muscular dystrophy (MMD) at the onset of ventilatory insufficiency. METHODS This retrospective study included ALS, DMD, and MMD patients with regular outpatient clinic follow-up in the Department of Rehabilitation Medicine at Gangnam Severance Hospita...